Cartridge feeding magazine for firearms



Aug. 23, 1949. A. M. OLSON CARTRIDGE FEEDING MAGAZINE FOR FIREARMS '7 Sheets-Sheet 1 Filed Feb. 27, 1948 R 7 v m M M Mm m0 7 w m 3 M MW 8 m t T A hm Q mm QN m N 0% M Q g WY \w A mm L 8 b N\. RN N m A Q\ .N. N V AW rlikr; twillrbk Aug. 23, 1949. A. M. OLSON CARTRIDGE FEEDING MAGAZINE FOR FIREARMS '7 Sheets-Sheet 2 Filed Feb. 27, 1948 mv m I W q, m 4 M\ QM 0 0 w P 4 V. I. B mm N mm mm m m6 03 L QQ v A 6R S V C w m 6E Aug. 23, 1949.

Filed Feb. 27. 1948 FIG. 6.

A. M. OLSON 2,47%770 CARTRIDGE FEEDING MAGAZINE FOR FIREARMS 7 Sheets-Sheet 3 IQTTORNEYS.

Aug. 23, 1949. A. M. OLSON 2,479,770

CARTRIDGE FEEDING MAGAZINE 'FOR FIREARMS Filed Feb. 27. 1948 '7 Sheets-Sheet 4 arromvvs.

A. M. OLSON CARTRIDGE FEEDING MAGAZINE FOR FIREARMS 7 Shee'ts-Sheet 5 Filed Feb. 27, 1948 INVENTQR. OLSON,

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ALTO/V BY Aug. 23, 1949. A. M. OLSON CARTRIDGE FEEDING MAGAZINE FOR FIREARMS 7 Sheets-Sheet 7 Filed Feb. 27, 1948 "nu Illa! llilarnll II llllllll ll m V T M. M N Q M m Q m m 0 v T M. W w m M I Patented Aug. 23, 194d NET caa'ramca resume rraasams MAGAZINE FOR Thiainvention relates to improvements in firearms, and more particularly to a magazine rifle which is cleared and loaded by movement of the breech mechanism.

It is among the objects of the invention to provide an improved magazine rifle which will receive an entire box of cartridges at one loading of the magazine and may receive the cartridges in the same arrangement in which they are packed in thebox so that the contents of a cartridge box may be inserted as a unit into the magazine of the rifle instead or separately inserting the cartridges, as is necessary with conventional 'magazine rifles, in which the cartridges are automatically turned from a position transverse to the rifle barrel to a'longitudinal position before insertion into the barrel chamber and are presented to the chamber with the cap and bullet ends properly disposed regardless of the relative transverse position of the ends, which is operative to divide the total number of cartridges conventionally contained in a cartridge box into several units, each including a predetermined number oi cartridges so that a string of a predetermined number of shots can be gotten off without having to count the shots, and which provides a simplifled mechanism including a minimum number of simple parts which cooperate without jamming or binding, are easy to assemble and disassemble, and economical to manufacture, and in which the operative mechanism is completely enclosed to protect it from dirt and moisture and provide a neat and attractive appearance for the rifle.

' Other objects and advantages will become apparent from a consideration of the following description in conjunction with the accomp t V drawings, wherein:

Figure 1 is a side elevation of a fragmentary intermediate portion of a magazine rifle illustrative of the invention;

Figure} is a longitudinal cross-section of the iragmentary rifle portion illustrated in Figure 1;

Figure 3 is a top plan view of the fragmentary rifle portion illustrated in Figure 1;

Figure 4 is a transverse cross-section taken substantially on line of Figure li;

Figure 5 is a bottom plan view of the breech bolt of the rifle mechanism shown in Figures 1 to 4 inclusive:

Figure 6 is a longitudinal elevation similar to Figure 1, but with parts broken away showing cartridges in the rifle magazine and a part of the cartridge feeding mechanism of the magazine;

Figure 7 is an elevation similar to Figure 6 4 Claims. (01. 42-11) showing other parts of the cartridge feeding mechanism;

Figure 8 is a top plan view of a fragmentary portion of the magazine rifle illustrated in the above-described figures showing the breech bolt open and a cartridge passing from the magazine to the breech of the mechanism;

Figure 9 is a view similar to Figure 8 showing a cartridge in position to enter the cartridge chamber in the barrel of the rifief Figure 10 is a longitudinal elevation similar to Figure 1 showing a modified form of magazine mechanism, a portion-being broken away to more clearly illustrate the construction thereof;

Figure 11 is a longitudinal elevation of the modified form of magazine rifle shown in Figure 0 with the cartridge receiver of the magazine projected for insertion of the contents of a box of cartridges therein;

Figure 12 is a transverse cross-section substantially on line 12-42 of Figure 10;

Figure 13 is a longitudinal cross-section of a fragmentary portion of a magazine rifle showing a further modified form of cartridge feeding mechanism;

Figure 14 is aside elevation of the further modified form of cartridge feeding mechanism illustrated in Figure 13;

Figure 15 is a longitudinal cross-section of a fragmentary intermediate portion of a magazine rifle showing a still further modified form of magazine mechanism;

Figure 16 is a top plan view of the modified magazine mechanism shown in Figure 15;

Figure 1'? is a transverse cross-section taken substantially on line 11-41 of Figure 15;

Figure 8 is a longitudinal cross-section of a fragmentary intermediate portion of a magazine rifle showing another modified form of magazine mechanism;

Figure 19 is a top plan view of the modified construction shown in Figure 18;

Figure 20 is a side elevation of the magazine shown in cross-section in Figure 18; and

Figure 21 is a bottom plan view of the megazine shown in side elevation in Figure 20.

With continued reference to the drawings, and particularly to Figures 1 to 9 inclusive, the rifle therein illustrated generally comprises a barrel ill, a hollow forearm H, a receiver 12, a breech bolt l3, and a stock H1.

Barrel I0 is of conventional construction and is provided with a cartridge chamber 15 at the rear end of the bore 16. The barrel is rigidly secured at its rear end to the top plate I! of the thereto and provided with a downwardly-projectingaperturedboss II whichreceiveathescrewthreadedinnerendof ascrewawhiehconnecta thestocklltothereceiventheforwardendd the stock beingauidedbetweenthedownwardlyprojecting side plates all of the hollow receiver sothatthestockisriaidlyaecuredtothereceiver by the releasable connection including theacrew 2| andisheldrigidlyinalignmmtwithtbebarrell Top plate 11 of the-receiver is provlded with a longitudinal trackway which slidably receives a longitudinal guide 23 provided on the lower surface of the breech bolt II.

The breech bolt comprises a tubular body 24. oneendportion ofwhichisfixedinatubular sleeve 25 to which the guideway 22 is secured and the other end portion of which is surrounded by a loose sleeve 26 rotatable and slidable thereon. A bolt lever 21 extends radially outwardly from the loose sleeve 26 andis provided at one side adjacent sleeve 26 with an abutment 28 engageable with a shoulder 29 formed on the side plate 21 of the receiver block the breech bolt in the closed position, illustrated in Pigurs l and2, for firing the ride.

At its forward end the tubular body 24 is provided with a thick end wall II apertured to receive the firing pin 3i, which pin has an abutment portion fitting the interior or the tubular body 24 at the inner side of end wall 3'. A hammer 32 is slidably mounted in the tubular body 24 at the forward end of the forward reduced portion 33 of a rod 34 which extends through the hollow body 24 of the breech bolt and is slidable therein. At its rear end therod 34 is provided with a knob 35 for cooking and locking the hammer in cocked position and is surrounded intermediate its length by a coiled compression spring II which is operative :to drive the hammer 32 against: the inner end of firing pin 3|.

Tubular body member 24 is provided with an elongated slot 25' in its rearward under surface through which atrigger-operated sear 88 extends to engage at its upper end a shoulder 31 provided at the forward end of the larger rearward'portion of rod 34 from which the reduced portionllextends. flearaextendsupwardlyr theshoulderreleasingtherodandthespring drivesthehammerflagainsttherearendof thefiring inlltodischargeacartridgeinthe 4 a on the receiver and the guideway 23 on the bottom surface of the bolt.

The stock i4 is of conventional design and construction and a detailed description thereof is not considered necessary for the purposes ofthe present disclosure.

The forearm Ii is a hollow casing of generally.

rectangular, cross-sectional shape having the for- I ward portion of its bottom wall forwardly and upwardly inclined to a front wall 4i which is welded or otherwise suitably secured to the barrel ll. The rear wall 42 of the forearm abuts the front end surface of the stock l4 and is secured to the receiver I2 so that the forearm is held rigidly in place relative to the receiver, the stock and the barrel and serves to reinforce the connection between the barrel and the stock The right-hand side wall 43' of the forearm is cut away at its rearward end to provide a rectangular recess of substantially the same size and shape as a conventional cartridge box and this recess is covered by a slidable cover plate 44 which is disposed against the inner side of the side wall 43 and is provided with a finger knob 45 by means of which the cover plate can be slid forwardly to uncover the recess and rearwardly to re-cover the recess, when desired. When the cover plate is slid forwardly to uncover the recess the'finger'knob 45 is received vin a recess 4i provided in the rear end portion of the forearm side wall 43.

A cartridge elevator in the form of an elongated, flat plate 41 having longitudinally-extendin: lateral flanges is positioned in the rearward portion of the forearm and extends longitudinally of the recess provided by the cut-away rear end portion of the side plate 43. This elevator is positioned against the bottom wall 48 oftne recess 7 portion of the forearm or magazine when the magazine cover plate 44 is moved forwardly and is resiliently urged upwardly to force cartridges in the magazine against the movable top wall 4| of the magazine when the cover plate is moved rearwardLv to cover the side opening of the Maine.

The movable top wall 4! of the magazine is movable forwardly and rearwardly by a mechanism, presently to be described, and is spaced belowthefixedtopwallllofthemagazinea distancesubstantially equaltothe major diameter of a cartridge which the rifle is designed to fire. The rearward end of the elevator plate is pivotally connected at its under-surface to the rearward end of an elongated lever II which extends forwardly through the portion of the forearm interior ahead of the magazine and has its forward end portion bifurcated and extended upwardly to provide a pair of apertured lugs 5| pivotally mounted on a transverse pin I: extending through the forearm and supported in apertures provided in the forearm side walls. The forward end of the elevator plate 41 is pivotallyconnected at its under-side to the rearward end of a lever IS. the forward end of which is bifurcated and pivotally supported on a pin- 1 54 which extends transversely of the forearm therecelvq thatratwayil.

adjacent the bottom wall thereof and near the forward end of the magazine and is supported in elongated slots I! provided in the lower edge portions of the forearm side walls. a

The elevator plate 41 is resilientlyurged toward themovable top plate 40 of the magazine byatorsionspringilcarriedbytheleverll intermediate its length and plate 41 near the pivotal connection between the plate and the lever 53.

A guide bar 51 is secured at its rearward end to the cover plate 44 and extends forwardly inside of the forearm ll adjacent the inner side of the right-hand side-wall 43. In the illustrated arrangement this guide bar is formed of two thin members of similar shape spaced apart and rigidly secured together in over-lapping relationship. A lever 58, particularly illustrated in Figure 7, lies between the two sides of the guide bar 51 and has its rearward end pivotally connected to the guide bar by a suitable pivot pin 59. This lever has in its lowerside a notch Ell which cooperates with a pin 6| extending transversely through the guide bar to limit downward movement of the forward end of the lever. The forward end of the lever is urged downwardly by a coiled compression spring 52 interposed between the rearward end of the lever and an apertured abutment G3 projecting upwardly from the guide bar 51 which spring surrounds a guide pin 64 pivotally connected at its forward end to lever 58 and passing slidably through the aperture in abutment 63. The forward end of lever 58 is provided with a notch 65 which is opposed to a transverse pin 66 extending through a loop 51 provided at the forward end of an elongated leg 58 of the lever 53 when the elevator plate 41 is in its raised or upper position, as illustrated in Figure 2.

Lever 50 passes between the sides of the bifurcated upper or rearward end portion of lever 53 and rests upon a transverse bead 69 provided on lever 53, being held against this head, by the action of spring 56. Thus, lever 50 is guided upon lever 53 in a manner to maintain elevator plate 41 parallel to the top plate 49 of the magazine as the elevator plate moves up and down in the magazine.

With the construction so far described, when the cover plate 44 is moved forwardly to uncover the side of the magazine, the lever 58 engages with its notched end the pin 58 carried by the forwardly-extended leg of lever 53. Lever 53 is generally in the form of a bell-crank lever and is pivoted at the bend intermediate its length on pin 54, which is slidably supported in side-wall slots 55. As forward movement of the cover plate 44 is continued, the forward end of lever 58 rises raising the forward end of lever 53 and turning lever 53 about its pivotal connection with pin 5%. This forces the rearward end of lever 53 downwardly carrying with it the forward end of elevator plate 41. As lever 50 is supported on the head 59 of lever 53 and held against this head by torsion spring 56 the rearward end of lever 50 is also carried downwardly, the front end of this lever pivoting about transverse pivot pin 52. As the rearward end of lever 53 moves downwardly, pin 54 moves forwardly in slots 55 so that the rearward end of this lever moves in a substantially vertical rather than in an arouate path as would be the case if pin 55 were fixed. The rearward ends of levers 53 and 50 move together at substantially the same rate so that plate 41 is maintained substantially parallel to plate 49 at all positions as the elevator plate ll is moved from the top to the bottom of the magazine chamber.

A slide extends across the inner-surface of the bottom wall of forearm ll immediately in front of the magazine chamber and has lateral flanges provided with elongated slots ll through which the pin 55 extends so that the slide is arm to a limited extent.

movable forwardly and rearwardly of the fore- At its rearward end slide 10 is provided with a pair of upstanding abutments 12 disposed one at each side of the forward end of the magazine chamber, which abutments constitute a movable front end for the chamber. Rearward movement of the slide I0 is limited by a shoulder 13 formed in the bottom wall of the forearm II at the front end of the magazine chamber and the slide is resiliently urged to its rearward position against this stop, by a coiled compression spring I4 which is interposed between the front end of the slide and the pivot pin 52 and surrounds a guide pin 15 which is rigidly secured at its rearward end to the slide 10, as by being welded or soldered thereto, and has its forward end bifurcated to slidably receive the transverse pivot pin 52. Slide 7 10 is provided with a laterally-extending hook 16 which passes around the lower edge portion of guide bar 51 and lever 58 is provided at its rearward end with an extension 11 which projects downwardly below the guide bar 51 when lever 58 is in the upright position, illustrated in Figure 7, and engages the hook 16 of the slide just before the cover plate 44 reaches its forward limiting'position to move the slide 10 forwardlya slight amount when the cover plate is moved to its limiting forward position to thereby slightly increase the length of the magazine chamber to facilitate insertion of the contents of a box of cartridges therein.

When the cover plate is returned to its rearward position covering the open side of the magazine chamber, the slide 10 is moved rearwardly by the spring 14 against the stop shoulder 13 so that the abutment l2 presses against the forward side of the block of cartridges in the magazine chamber and properly positions the cartridges in the chamber.

After the cartridges have been positioned in the chamber and the cover plate M closed, the block of cartridges in the magazine chamber is resiliently urged rearwardly by the slide abutments 12 and is resiliently urged upwardly by the elevator plate dlupon which it rests.

The top wall I! of the receiver is extended forwardly to provide a fixed top wall for the magazine chamber, this combined top wall being transversely slotted at 8| to permit the passage of a single cartridge through the feed slot from the magazine to the top of the top wall ll of the receiver. A pair of spaced-apart, inclined ramps 82 are provided at the rear end of the magazine extending upwardly and rearwardly to the rear edge of slot 8i to guide the cartridges through the feed slot, these ramps being adjacent to, but preferably spaced somewhat inward 1y of the corresponding side walls of the maga zine.

The movable top wall 49 of the magazine chamber is secured at its front end to afoot 83 provided at the rearward end of a plunger 84 which extends forwardly through the hollow forearm ll and is guided intermediate its length in an apertured lug 85 which projects forwardly from a transverse support 86 extending across the interior of the forearm and secured to the side walls thereof, and in an aperture provided in the front wall 4| of the forearm.

This plunger 8% is movable forwardly and rearwardly of the forearm and is resiliently urged in a forward direction by a coiled compression spring 81 which surrounds the plunger between 75 the forward end of the lug 85 and an abutment gumbo 7 washer l8 secured on the plunger. At its forward end the plunger is provided with a manually-depressible latch ll engageable with an edge of the aperture in the front wall I and with a knob It. l I

An upstanding apertured lug II is secured to the plunger .4 between the lug II and the plunger Withthe above-described mechanism; assumthat there are cartridges upon the elevator :41 inthe magazine chamber. and none the space between the movable top wall II the fixed topwail ll of the magazine, the t II is manually released and thespring the plunger 84 forwardly until the rear ust forward of the front end of elevator lnthispositionofthepusheranslwith movable top wall of the magazine also the elevator arowof cartridges lsraised against the underrow, thereby separating the top row and holding itbetween wall It and movable wall 4! at the top magazine. The rearward end 'of the g5 ENE, 2 E; EELEE me into strings oftenshota and ms not necessary found deairable of eartridgesin themagathe forward poaltionof the ofcartridge pusher l2 ls brought to a posi-- 8 Ibscartridgepushe'rllisalsoshowninthisfigure as positioned at the forward end of the top row of cartridges II, so that when the plunger '4 is forced rearwardly and spring ll thepusher will resiliently urge thetop row of cartridges rearwardly against the ramps .2.

With the magazine conditioned, as above-defor loading of the gun, and. assuming thebreech bolt llsto be locked in its forward position. as illustrated in Figure 1', in order to load or reload theirifie, the breech bolt lever TI is first raised to a position as illustrated in Figure 8,'at which it clears the bolt locking.

shoulder 29 and the breech bolt is then slid rearwardly to itsiiimiting rear position. As the breech bolt moves rearwardly the bottom edges of the trackway it ride upon the top surface of the cartridge presented at the feed slot II in the magazine until the forward ends II of the trackway edges pass to. the rear of the cartridge permitting the cartridge to rise upwardly through the feed slot 'into the breech mechanism. When rising outof the receiver of the rifle.

the bolt is now moved forwardly; the trackway ends. I! serve as prongs which engage the rearward side of the cartridge and force it forwardly in the receiver toward the rear end of the barrel The receiver has a pair of spaced-apart. substantially parallel vertical walls 88 which'extend rearwardly from the rear end of. the barrel for a portion of the length of the receivers Each of these walls is provided in its lower portion adjacent the receiver .top wall I! with a longitudinal extension ll of substantially semi-circular cross-sectional shape which "extensions are concavely opposed to each other at oppodte sides of the receiver and are spaced apart a distance substantially equal to the length of a cartridge.

These extensions receive the cartridge rising through thefeed slot II and prevent it from They also constitute a guideway for the cartridge as it is foreedforwardly of the breech mechanism .by

.- tutegroovesreceivinglate forward movement of the breech bolt It. At their .upper edges the side-walls at are provided with concavely opposed heads I which consti- "I on the front end of the breech boltto mist inguidingthebreech boltinalstraightpath foetherifiemantocotmttheshotsineachstringr y Obviol lsiyrmyotherdeairednumberofcartridges .mayheinsertedastheoriginalcartridgeblock. 1 maybe'sub-dividedas may be wardly at their forward ends, Ill; converge to a ram Ill-which is disattherearend ofthebarrei immediately e and upwardly from the top wall of the to the barrel chamber. The cross-seccurvature of the forward, converging porextensions is such that the bullet end dge will pass throu h the concave of theextensions. but the cap end will age ovement of. the cartridge toward the her. This serves to turnthe cart thebuilet end thereof is first prethe-barrel: chamber regardless of the e end-to-end position of thecartridge' ted transversely of the breech mechanism when fed throughthefeed alotll. l

A small. U-shaped member I u slidably secured to the breech bolt under'the forwardend v longitudinally-extending strip III which eztenfl alongttm forward portion of the trackway between the two sides thereof. This -proiecting flanges chamberlland which is inclined forthroughandwill, therefore, be retarded F ing forwardly of the breech bolt and disposed one at each side of the guideway 23, as is clearly shown in Figure 5. A pin I is secured to the rearward closed end of the U-shaped injector I06 and is slidably guided in a portion I01 of the guideway having a pin-enclosing bottom wall. A coiled compression spring I08 surrounds the pin between an abutment provided at the rearward end of the guideway portion I07 and an abutment washer I09 secured on the rearward end of the pin to resiliently urge the injector I00 to its rearward position relative to the breech bolt in which its closed end is in contact with the forward end of the guideway portion I01. The injector me has on its upper surface a projection IIO, Figure 2, which is engaged by the forward end of sleeve 26 as the breech bolt lever is moved forwardly. When the sear 38 engages shoulder 31, the breech bolt will be momentarily stopped since spring 36 is stronger than spring I08, and during this time sleeve 25 to which bolt lever 21 is secured, will move forwardly of the breech bolt carrying with it the injector I04 and the front end face of one of the injector legs will come into contact with the cap end of the cartridge in the guide extensions I02 and force the cartridge up the ramp I03 and into the chamber of the barrel. The extent of sliding movement of the sleeve 26 on the breech bolt is only sufficient to move the injector from its retracted position, illustrated in Figure 5, to a position in which the front ends of its legs are flush with or slightly beyond the front ends 91 of the forward guideway sides. As soon as the injector has been brought to this position, the front end of sleeve 26 contacts the rear annular shoulder of the front wall 30 of the breech bolt and forces the entire bolt forwardly compressing spring 36 to move hammer 32 away from firing .pin 3| and cock the firing mechanism of the rifle. When the front end of the breech bolt has been brought against the rear end of the barrel the lever 2? may be turned downwardly to engage the shoulder 29 and lock the breech bolt in its forward position with the firing spring 36 compressed. The forward end portion of sleeve 26 is provided with a longitudinal slot III and, when the lever 21 is turned down, sleeve 26 is rotated until this slot is brought into alignment with the extension M0 on the injector which permits spring I08 to retract the injector to its rearward position, illustrated in Figure 5, in which position it is operative to inject the succeeding cartridge into the chamber.

A cartridge extractor I I2 is carried by the front end of the breech bolt in position such that it enters the upper rear portion of the chamber I5, as is clearly illustrated in Figure 2, and engages the rim on the cap end of the cartridge.

The improved mechanism illustrated in Figures 1 to 9 inclusive, thus provides a cartridge magazine in which a block of cartridges representing the entire contents of a conventional cartridge box can be inserted at one time, and in a manner such that the cartridges will be disposed transversely of the barrel of the rifle, which is operative to divide the block of cartridges into groups, each containing a number of cartridges less than the total number contained in the box,

The form of the invention shown in Figures 13 and 14 is substantially the same in all details as that shown in Figures 1 to 9 inclusive, and illustrated above, except that the arrangement of the levers supporting the cartridge elevator plate M is somewhat different. In this arrangement the forward end of plate A! is pivotally connected at its under-side to the rear end of an elongated lever Ils which extends forwardly through the hollow forearm I I and is pivotally connected to the forearm at its front end by a pivot pin H4 which extends transversely through the forearm and is secured at its ends in the side walls thereof. The rearward end of the plate a! is pivotally connected at its under-side to the rear end of an elongated lever II 5 which also extends forwardly through the hollow forearm and is pivotally mounted intermediate its length on a transverse pivot pin IIB which extends transversely through the hollow forearm rearwardly of the pin Iii and is secured at its ends in the side walls of the forearm. A coiled compression spring II? is interposed between the levers EIS and H5 and between the pivot pins Ila and IIS so that one end of the spring bears downwardly on the end portion of lever H5 ahead of the corresponding pin 0 tending to raise the rearward end of this lever, and the upper end of the spring bears rupwardly on aportion of lever M3 to the rear of pivot pin IId tending to simultaneously raise the rearward end of this lever. Thus, the plate 51 is resiliently urged upwardly by the force of spring II! and is held substantially parallel to the top and bottom walls of the magazine chamber H8 by the geometry of the levers. A bell crank lever H9 is pivotally mounted adjacent its intermediate bend on the pin lit and is provided at its forward end with a loop I20 corresponding to the loop 61 on lever 53 and supports a pin I2! corresponding to pin 86. Pin 66 is engageable by the notched forward end of lever or link 58 carried by guide bar 51 of the magazine cover plate 8 3 in the same manner as explained above in connection with Figures 2 and 7, so that the forward end of lever H9 is swung upwardly about pivot pin H0 when the magazine cover plate is moved forwardly to uncover the magazine. The rearward end of bell crank lever H9 is pivotally connected at I22 with the rearward end of a double-ended lever I 23 which is pivotally connected to plate-supporting lever I 83 intermediate the length of the plate-supporting lever by having a transversely-extending intermediate portion thereof pass through an apertured extension I28 provided on lever I I3 rearwardly of pivot pin HQ. The forward end of lever I23 is pivotally connected to the upper end of a link assembly I25 the lower end of which is pivotally connected to the forward end of lever H5. The link assembly 5 may conveniently comprise a pair of similar, parallel links I 25' disposed one at each Side of the forward ends of levers II5 and lit.

With this arrangement, when the forward end of bell crank lever H9 is swung upwardly by link 58 and the rearward end of this bell crank lever simultaneously swung downwardly carrying with it the rearward end of double-ended lever I23 the extension I28 of plate-supporting lever I I0 is moved downwardly and the forward end of platesupporting lever I I5 is simultaneously moved upwardly, resulting in a simultaneous downward movement of the rear ends oi both levers H3 and I I5 which carries the cartridge elevator plate 51 downwardly and maintains it substantially rearward end slidably received in an elongated,

tubular lug I21 secured to the slide. Slide I has upwardly-extending side walls provided with elongated slots II which receive the pin II and guide the slide in its forward and rearward movements relative to the magazine chamber in the forearm II. The purpose of the slide is the same as that of the slide in Figures 2 and 7, as described above.

In the modified arrangement shown in Figures 13 and 14, forward movement of the magazine cover plate 44 moves the cartridge elevator plate 41 downwardly to the bottom of the magazine chamber and simultaneously moves the slide It forwardly to a small extent so that the contents of a cartridge box can be easily inserted into the magazine chamber. When the cartridges have been inserted and the cover plate is moved forwardly to cover the magazine chamber, the slide I0 is moved forwardly to properly position the cartridges in the magazine chamber and lever I I9 is released freeing spring I" to exert its force in an upward direction on cartridge elevator plate 41 to resiliently urge the cartridges contained in the magazine toward the top of the chamber.

Figures 10, 11 and 12 disclose a modified form of magazine mechanism including a magazine clip or drawer, generally indicated at I30, which is received in the rearward portion of the hollow forearm II, and is movable downwardly out of the forearm to receive a charge of cartridges therein,

The drawer I 30 has a bottom plate I 3I which covers the drawer-receiving Opening in the bottom wall of the forearm II when the drawer is in closed position, as illustrated in Figure 10, and carries a manually-operated latch I33 which releasably secures'the drawer in the closed position. A pair of substantially parallel, spacedapart end walls I33 and I34 extend inwardly from the bottom'wall I3I and are connected by a back wall I30 which provides a bottom or rear closure operatively connected with one of the elongated slots in the rib. The other member of the pair of members I40 is slidably connected with the flange I and the rib I, as is .clearly illustrated in Figure 10. With this arrangement the elevator plate I33 may be moved between an elevated position relative to the lower end plate of the magazine drawer, as illustrated in Figure 10, and a position in which it rests upon the inner-surface of end plate I, as illustrated in Figure 11. the X frame assembly being collapsible to permit such movement of the elevator plate and being extensible when the elevator plate is moved away from the bottom plate I3I to guide the elevator plate and maintain it substantially parallel to the bottom plate at all times.

A lever I43 is pivotally connected at its forward end to the rearward end of plate I39 at the under-surface thereof and extends rearwardly through medial, longitudinal slots provided in plates I33 and I'3I. This lever is supported at substantially its mid-length position on the upper end of a strut I44 by a pivotal connection I45 between the lever and the upper. end of the strut, the strut being pivotally connected at its lower 7 end to the inner-surface of bottom wall Hi imfor the drawer. A pair of grooved guides I36 are secured to the rear or left-hand side wall of the forearm and slidably receive extensions of the back plate I35 to guide the drawer or chamber I30 in its movements into and out of the forearm.

The magazine drawer is also guided by a plate I3I depending from the lower, forward edge of ramp I30 and contacting the inner face of rear end wall I33 of the magazine drawer.

' A movable cartridge elevator plate I3! is positioned within the magazine drawer and guided by an X frame assembly comprising two parallel pairs of cross-over members I40, the two members of each pair being pivotally inter-connected at their mid-length positions. The end wall I'3I of the drawer is provided interiorly of the drawer with a pair of spaced-apart, substantially parallel, upstanding ribs I ll each having a pair of spaced-apart, elongated slots therein. The upper end of one of the members I40 is pivotally connected to one of the depending flanges I42 of the elevator plate I33 and is slidably connected with the corresponding rib I by having its lower end mediately to the rear of the lower end of rear end-plate I33 by a pivotal connection I 46. The rearward end of lever I43 carries a pin I 41 and a loop spring I40 mounted on a suitable bracket, not illustrated, within the rear part of the forearm II' and bears at its outer end on the pin I41 urging the rearward end of lever I43 downwardly and plate I39 upwardly.

A lever I50, similar to lever I43, is connected at its rearward end to the forward end of plate I30 by a pivotal connection at the undersurface of the plate and is supported intermediate its length by a pivotal connection III carried by the upper end of a strut I02, the lower end of which is pivotally connected at I03 to the inner-side of the bottom wall "I of the magazine drawer immediately in front of the lower end of front end-plate I34 of the drawer, the lever I00 projecting through a longitudinal slot provided in end-plate I34. A loop spring I04 mounted upon a pin I05 and held under tension by a bracket I06 secured In the forearm II bears at its rearward end upon a pin I51 carried by the forward end of lever I50 to urge the forward end of this lever downwardly and the forward end of plate I59 upwardly.

When the magazine drawer I30 is pulled out of the forearm of the rifle, as illustrated in Figure 11, the rearward end of lever I43 and the forward end of lever I00 come into contact with the bottom wall of the magazine forearm at the rear and forward ends respectively of the opening provided in the bottom wall for the drawer I30, which contact tilts levers I43 and I50 about pivotal connections I40 and I5I forcing cartridge elevator plate I33 downwardly against the innerface of the bottom wall I 3| of the magazine drawer, as illustrated in Figure 11. With the elevator plate I43 in the position illustrated in Figure 11, the contents of a conventional cartridge box may be inserted into the magazine drawer I30 on top of the plate I33. The drawer is then forced back into the magazine and locked in position by latch I32 whereupon springs I40 and I04 are rendered eifective to resiliently urge the elevator plate I33 upwardly holding -the cartridges against the movable top wall 48 of the magazine.' Magazine drawer I3I is provided with a slidable top plate I 58 which closes the upper aavavvo end of the drawer when the drawer is in the projected position, illustrated in Figure 11, to prevent cartridges inserted in the drawer from being pushed out of the top end of the drawer and over the upper ends of the drawer endwalls I33 and I34. This slidable top plate I56 extends beyond the upper end of front end-wall I 34 and is provided in its extending end portion with a hole or aperture I59 which receives a pin I 60 projecting downwardly from the movable top wall 49. When the drawer is moved back into the magazine to the position illustrated in Figure 10, pin I60 enters the aperture in slidable top wall I58 of the magazine drawer and locks this slidable top plate I58 with the movable top wall 69 of the magazine so that both plate I58 and wall 49 are withdrawn when the plunger 66 is moved forwardly to admit a row oi. cartridges into the feed chamber between wall 69 and top fixed wall 80 of the magazine.

In this arrangement the cartridge feed mechanism, including plunger 84, pusher 92, bolt I3, and the remainder of the breech mechanism, not illustrated in detail, may be the same as that described above in connection with Figures 1 to 9 inclusive, and a detailed description thereof is not believed to be necessary for a complete understanding of the modified magazine mechanism illustrated in Figures 10, 11 and 12.

Figures 15, 16 and 1'! illustrate a modified form of breech bolt and firing mechanism which may be operatively associated with any of the megazine mechanisms herein described.

The receiver, generally indicated at I62, comprises a hollow, rectangular body having a top wall I 63, an end wall I65, and side wall I65 extending downwardly from the top wall I63, the bottom and front of the hollow receiver preferably being left open for cooperation of the stock and magazine therewith. A pair of upper side walls I66 and I61 extends upwardly from the top wall I63 along the opposite edge thereof and are provided at the upper edges of their forward portions with opposed groove sections I66 and at their rear ends with short groove sections I69 which groove sections provide a. guideway extending longitudinally of the receiver for the breech bolt. generally indicated at I10.

The breech bolt comprises an elongated, tubular member I1I slidably received between the side walls I66 and I61 extending upwardly from the top wall I63 of the receiver and provided with diametrically-opposed laterally-extending wing sections I12 and I13 slidable in the groove sections I66 and I69 of thereceiver to guide the bolt for longitudinal movement in the receiver.

The front wing sections I12 extend for a short distance lengthwise of the breech bolt and are slidably received in the lon groove sections I66 at the forward end of the receiver, while the rear wing sections I13 on the breech bolt extend longitudinally of the bolt substantially one-half of the bolt length and are slidably received in the short groove sections I69 at the rear end of the receiver. A cylindrical lug I16 is secured on one side of the tubular member I1I adjacent the midlength position thereof and rotatably receives the perpendicular-extending end portion of a breech bolt lever I15. The lever I15 moves up and down independently of the breech bolt to' engage it with or release it from an abutment shoulder I16 provided on the side wall I61 at the forward end of the corresponding rear groove section I13. When the lever I15 is engaged in front of the shoulder I16, as illustrated in Figure 16, the bolt is locked in firing position. The lever may be raised to release it from the shoulder and the bolt then retracted rearwardly of the receiver to eject an empty shell from the chamber of the barrel I and inject a new shell into the barrel chamber.

A hammer rod, generally indicated at I11, ex-

7 tends longitudinally through the tubular member HI of the breech bolt and is provided at its forward end with a cylindrical hammer I18 which has a sliding fit with the interior of the tubular member I1I. A reduced portion I19 of the hammer rod extends rearwardly from the hammer to an annular shoulder I and from this shoulder the rearwardly-extendlng portion of the rod has a diameter such that it slidably fits the interior of the tubular member I1I. A coiled firing spring I6I surrounds the reduced portion I19 of the hammer rod between the hammer and an abutment pin I82 which extends transversely through the tubular member I 1 I.

A pivot pin I83 is mounted in the rearward portion of the hollow receiver by apertured brackets nae secured to the interior of the receiver and receiving the ends of pin I03, pin I83 extending longitudinally of the interior of the hollow receiver forwardly from the rear wall I66 a distance suflicient to support a sear, generally indicated at I85, thereon.

Sear I85 comprises a generally rectangular bottom portion I86 extending along pin I83 and having secured to its side adjacent the pin a bearing sleeve I81 through which the pin extends to pivotally mount the scar on the pin. An arm I86 projects upwardly from the upper end of the rectangular bottom portion I86 of the sear to a position substantially diametrically opposite the center-line of the breech bolt I10 and is there provided with a perpendicularly-extending detent I89 which extends through an elongated slot I93 in the tubular member I1I for engagement with the annular shoulder I80 of the hammer rod I11.

When the breech bolt is drawn rearwardly to its limiting position, shoulder I80 is positioned to the rear of detent I89, and when the breech bolt is subsequently moved forwardly, hammer rod I11 is held against forward movement by engagement of detent I89 with shoulder I80, thereby compressing the firing spring WI and cocking the rifle for' firing by the trigger ISI.

Trigger I9I is pivotally mounted on a pivot pin I 92 which extends transversely through the hollow breech block and is secured at its ends in the downwardly-extending side walls thereof and has a rearwardly-extending arm I93 which engages at its rear end in an apertured lug I94 extending from the front edge of the rectangular bottom portion I86 of the sear under the pivot pin I83, so that movement of the trigger is effective to rock the sear about the pin I63 to release the detent from its engagement with the shoulder I00 to flre the rifle.

A loop spring I95 is coiled about the trigger pin I92 and bears at one end against the rearward side of trigger I9I and at its oposite end against the under-side of forward sear pn supporting bracket I 84. This spring resi iently urges the trigger forwardly and at the same time urges the upper end of the sear inwardly so that the sear detent automatically engages the shoulder i when the bolt is retracted.

A transverse guide block I96 rests upon the upper surface of receiver top wall I63 between the upwardly-extending side walls of the receiver and is positioned near the rearward edge of feed slot 9| when the breech bolt is in the closed position,-

illustrated in Figure 15. A guide rod I91 extends rearwardly from the guide block I96 and near its rearward-end passes through an apertured lug I98 secured to and extending upwardly from the top wall I63 of the receiver. The rearward end of the guide pin is extended upwardly perpendicular to the remainder of the pin to provide a detent I99 extending into an elongated slot 200 provided in the bottom portion of the tubular member I adjacent the rearward end thereof. A coiled compression spring 20I surrounds the guide pin I9'I between the guide block I96 and the apertured lug I98. Y

A bifurcated cartridge injector 202 is slidably supported on the top wall of the breech block and is secured at its rearward end against the forward face of guide block I96. A firing pin 203, preferably of inverted U-shaped cross-section extends downwardly from the hammer I'IB between the oppositely-disposed legs of the bifurcated injector 202 and is provided at its upper forward corner with a firing point 204 for discharging the rim-fire cartridges. This firing pin extends upwardly from the top surface of the upper wall I53 of the receiver to the hammer I18 and has its upper edge portion slidably received in an anvil 205 secured in the forward end of tubular member I'II closing the same except for the upper portion of movable firing pin 203.

An extractor 208 is secured to the upper-side of the front end of the tubular member III, above the firing pin, to engage behind the head of a cartridge 20?, as illustrated in Figure 15, to withdraw the cartridge from the chamber in the barrel I0.

16- the point 2 ofthe firing pin strikes the rim of the cartridge and the firing pin is in the forward position. illustrated in Figure 15. If now, the lever I'll is raised to free it from shoulder I'll and bolt I'll retracted, the firingpin 203 will be held in its forward position by the force of spring 20I, while the bolt is drawn rearwardly carrying with it the extractor 209. As the cartridge is withdrawn from the barrel, the firing pin will continue to exert a forwardly-directed resilient force on the bottom edge of the cartridge shell, until the forward end of the empty shell is Just clear of the rear end of the barrel at which time this force will fiip the cartridge upwardly out of the barrel and clear of the mechanism. The forward movement of the firing pin is limited by contact of the front end of hammer I" with anvil 205. As retraction of the bolt is continued,

front end of slot 200 will contact detent I90 on guide pin I91 to pull the injector 202 back past the feed slot III whereupon a new cartridge will be injected into the receiver and may be loaded form of'magazine mechanism in which the cartridges are arranged in a single row and extend transversely of the longitudinal axis of the rifle barrel and breech mechanism, but are inserted In the operation of this modified form of breech bolt and trigger mechanism, when the bolt is retracted the shoulder I90 of the hammer rod is moved rearwardly of the detent I89 on sear I85 and at the same time the flat injector 202 is moved rearwardly of the feed slot 8| in the top wall of the breech, block. A cartridge is then forced upwardly through the feed slot to a position immediately above the top wall of the breech bloclr and is held in this position by the rearward end portions of cartridge guides I02 which are provided in this form of the invention in the same manner as illustrated in Figures 4, 8 and 9 and.

described above. 7

When the breech bolt I10 is now moved forwardly from its retracted position the sear detent I89 engages shoulder I80 and holds hammer rod I19 retracted. Injector 202, however, is moved forwardly by spring 20I and enters the cartridge into the converging end portions of the semi-cylindrical guides I02 toward the ramp I03. When the cartridge has been properly turned in the guides I02 it is picked up by the anvil 20! and forced up the ramp I03 and into firing position in the barrel chamber, as illustrated in Figure 15, firing pin 203 being held retracted by the trigger scar and injector 202 being stopped by the converging guides shortly after the cartridge has been turned in the guides to present its bullet end to the rearward opening of the barrel chamber. As soon as the bolt has been moved-to its forward limiting position, lever I1! is turned downwardly to engage in front of shoulder III on the receiver and at the same time extractor hook 206 will be engaged ahead of the base rim on the cartridge, as is also clearly illustrated in Figure 15. Pulling the trigger will now release the hammer rod Ill and spring IOI will drive the hammer forwardly with the firing pin 203 until into the magazine singly rather than being dumped from a cartridge box into the magazine in a single operation.

In the magazine arrangement illustrated in Figures 18 to 21 inclusive, the firearm is provided with a forearm 2I0 which may be of generally conventional construction and may, if desired, be formed of ,a suitable material such as plastic or wood. This forearm 2I0 is recessed in the face thereof adjacent the barrel I0 to provide a well or opening 2 extending from the front end of the forearm to the receiver of the rifle. This opening 2 receives an elongated magazine, generally indicated at 2I2, comprising a tubular casing having a length substantially equal to the length of the forearm and a rectangular cross-sectional shape of a thickness substantially equal internally, to the base diameter of a cartridge plus the thickness of the strip 2, and a width having an internal dimension substantially equal to the length of a cartridge so that a single row of cartridges 2|! can be disposed in this magazine with the cartridges extending transversely of the magazine casing. In the arrangement illustrated, the bottom wall of the magazine casing 2 is longitudinally slotted and this slot is covered by a slidable strip 2" extending longitudinally through the casing at the bottom thereof. A strap 2I9 is secured to the forward end portion of the strip 2i! and extends forwardly of the casing and is provided on the upper surface of its forward end with a cylindrical lug 2H and at its lower surface with a fiat the forward end of the casing and the lug.

With this arrangement, the strip did is urged forwardly of the casing 2 It by the force of spring 22! and may be moved rearwardly by manual force applied to the outer end of hook 2i8. Movement of strip 2l5 forwardly and rearwardly of the casing is limited byv suitable stop means which may comprise a bar 222 secured at its ends to the casing and extending transversely across the strip M5, a stop 223 secured to the strip at the rearward side of bar 222 andthe rearward end of strap 2H9.

A rear abutment 225 is positioned within th rearward end of casing tit and secured to the rear end of strip H5 which abutment has a sliding fit in the rear end portion of the casing and is urged forwardly by spring 22! to a position in which it covers cartridge feed slot 225 in the rear end portion of the top wall of the casing did.

This abutment has a limiting rearward position in which its forward edge is just to the rear of the feed slot 225, as is clearly illustrated in Figure l8. A pair of inclined ramps 228 are secured in the rearward end portion of the casing leading from the bottom wall of the casing forwardly and upwardly to the rear edge of feed slot 225 at each end thereof and abutment member 22d is transversely dimensioned to pass between these ramps.

A detent 221 is provided at the front end of forearm 2E0 which detent is engages-hie by latch did. When the magazine is inserted into the opening 2 in the forearm the rear end of the casing first comes into contact with the wall at the rear end of recess 2i i, after which lug 2H and hook 2B5 are forced inwardly compressing spring 221 until latch 2i9 engages detent 22l in which position of the parts abutment 32d has its forward edge positioned slightly to the rear of the rear edge of feed slot 225, as shown in Figure 18, and the cartridges one may then pass from the interior of the casing up the ramps 22% and through the fed slot into the breech mechanism of the rifle.

When latch 2i is released from detent 22? and the magazine withdrawn from the forearm, spring 2M expands moving abutment $23 forwardly until it is positioned somewhat ahead of feed slot 225, as clearly illustrated in Figure 19.

A pair of openings 23% are provided one in each side wall of the magazine casing id in the rearward end .thereof and in position such that they expose the forward portions of the ends of the abutment 226 when in the forward position, illustrated in Figure 19. A pusher 226 is slidable in the interior of the casing and is connected at'its forward side to the rear end of astem 229 which extends forwardly through the casing and into the guide tube 229 which extends forwardly from the front end of the casing. A coiled compression spring 238 surrounds stem 229 between the pusher 228 and the rearward end of guide tube are to resiliently urge the pusher rearwardly in the casing.

A flap 2a! is pivotally secured at its rearward edge to the rearward end of the magazine casing 2M and extends forwardly beneath the casing to the side wall openings 221 where it is provided end first, into the magazine through one of the side wall openings. The ends of abutment 226 are recessed, as indicated at 233, so that the bullet end of a cartridge can be started between the front edge of the corresponding end of the abutment and the rearward edge of the corresponding end of pusher 228 to wedge the pusher away from the abutment and permit the bullet to be -forced between the abutment and the pusher.

In inserting the cartridges into the magazine it is preferred to insert a cartridge bullet-end first through one of the openings 221 and then to insert a second cartridge bullet-end first through the opposite opening 221, as illustrated in Figure 19, so that the cartridges will be arranged in opposite end-to-end relationship in the casing of the magazine.

As the cartridges are forced into the magazine through the openings 22'! the pusher 228 is moved forwardly, compressing spring 280, until the magazine is filled.

After the magazine has been filled, as indicated above, it is re-inserted in the opening iii in the rifle forearm and the hook 2I8 forced rearwardly until latch M9 engages detent 227. This positions abutment 22d'at the rearward edge of feed slot 225 so that cartridges will be fed from the magazine into the breech mechanism of the rifle, as indicated above.

Thismagazine mechanism may be used in combination with either of the breech bolt and trigger mechanisms herein-above described as may any of the other magazine mechanisms previously described herein.

The above-described devices provide a simplified gun construction, in which a large number of cartridges may be stored in the magazine by arranging the cartridges transversely of the ion-- gitudinal center-line of the rifle barrel and breech mechanism. In some of the modifications abovedescribed, an entire box of cartridges may be inserted into the rifle magazine in a single operation and'may be subsequently divided into groups of a number less than the entire contents of the box for string firing or other purposes. There is herein-described suitable magazine mechanism for holding the cartridges in the transverse position indicated and for feeding such cartridges one-by-one into the breech mechanism of the rifle and suitable breech-bolt and receiver mechanism eflective to orientate the cartridges so that the bullet end is always presented to the barrel chamber as the cartridges are inserted into the barrel, for inserting the cartridges, ejecting the empty shells from the barrel and rapidly firing the cartridges, if desired, by operation of the improved breech-bolt mechanism.

While a manually operated, multiple shot rifle has been shown for the purpose of illustrating the invention. the magazine mechanisms are applicable to a fully automatic rifle, if such a combination should be desired.

The invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are, therefore, intended to be embraced therein.

What is claimed is:

1. A cartridge feeding magazine insertable into an elongated, magazine receiving recess discartridge feed slot in the rearward rtion of its upper wall, a tubular guide secured to said casing and extending forwardly from the forward end of the latter, a strip slidably disposed longi tudinally of said casing against the bottom wall thereof, an abutment within the rear portion of said casing secured to the rear end of said strip, an apertured lug secured to the front end of said strip slidably receiving said tubular guide, a flat hook secured to the forward end of said strip, a

latch carried by said hook and engageable with a detent in the forward end of the rifle forearm to releasably secure said magazine inoperative position'in the magazine receiving recess, a cartridge pusher siidable in said casing and having a stem slidably received in said tubular guide, a compression spring surrounding said stem between said pusher and said tubular guide urging said pusher rearwardly of said casing, said casing having a pair of cartridge-receiving openings disposed respectively in the side walls near the rear end of said casing. and a compression spring surrounding said tubular guide between the forward end of said casing and said guide receiving lug for moving said abutment forwardly to close said feed slot when said magazine is removed from the rifle.

2. A cartridge feeding magazine insertable into an elongated, magazine receiving recess disposed between a rifle barrel and forearm and communicatin with the receiver at the breech end of the rifle, said magazine comprising an elongated tubular casing of rectangular cross sectional shape dimensioned to slidably receive cartridges disposed transversely thereof, said casing having a cartridge feed slot extending transversely of its upper wall near the rear end of the latter, a tubular guide secured to the front end of said casing and extending forwardly therefrom, a strip extending longitudinally through said casing adjacent the bottom wall of the latter, a lug on the front end of said strip slidably receivin said tubular guide, an abutment on the rear end of said strip siidable in said casing at the rear end of the latter, resilient means interposed between said casing and said lug urging said abutment to a position in which it covers said feed slot, a cartridge pusher siidable in said casing and having a stem slidably received in said tubular guide, and resilient means between said pusher and said tubular guide urging said pusher rearwardly of said casing, said casing having respective cartridge-receiving openings in its side walls adjacent said feed slot and said abutment havin recesses in its front corners to facilitate insertion of cartridges into said casing.

3. A cartridge feeding magazine insertable into an elongated, magazine receiving recess disposed between a rifle barrel and forearm and commuhicating with the receiver at the breech end of the rifle barrel, said magazine comprising an elongated tubular casing of rectangular cross sectional Shape dimensioned to slidably receive cartridges disposed transversely thereof, said casing having a cartridge feed slot extending transversely of its upper wall near the rearward end of the latter, a tubular guide secured to the front end of said casing and extending forwardly therefrom, a strip extending longitudinally through said casing adjacent the bottom wall of the latter, a. lug on the front end of said strip slidably receiving said tubular guide, an abutment on the rear end of said strip siidable in said casing at the rear end of the latter, resilient means interposed between said casing and said lug urging said abutment to a position in which it covers said feed slot, a cartridge pusher siidable in said casin and having a stem slidably received in said tubular guide, resilient means between said pusher and said tubular guide urging said pusher rearwardly of said casing, said casing having respective cartridge-receiving openings in its side walls adjacent said feed slot, and means carried by said strip and engageable with a forearm'carried detent for holding said abutment rearwardly of said cartridge feed slot when said magazine is operatively assembled with a rifle.

4. A cartridge feeding magazine insertable into an elongated, magazine receiving recess disposed between a rifle barrel and forearm and communicating with a receiver at the breech end of the barrel, said magazine comprising an elongated tubular casing slidably receivable in said recess and of substantially rectangular cross sectional shape dimensioned to slidably receive a string of cartridges disposed transversely thereof, said casing having a. cartridge feed slot in its top wall and respective cartridge injecting openings in its side walls near the rear end of said casing, an abutment siidable in said casing near the rear end of the latter, spring means urgin said abutment to feed slot closing position, means acting against said spring means to hold said abutment in "feed slot opening position when said magazine is assembled with arifle, a cartridge pusher in said casing and spring means urging said pusher rearwardly of said casing.

ALTON M. OLSON.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Conway Sept. 26, 1944 

